Re: LF: 500kHz class D TX design

["Johan H. Bodin" <jh.bodin@telia.com>]

Dear Jim,

it would be very interesting to have a look at your TX design.

Attached is a schematic of a push-pull class E amplifier.
I have had good results with such a circuit at QRP levels on 80 and
160 meters with four paralleled junkbox 2N7000 on each side.

With high enough tank Q, the transistors won't notice they are in a
push-pull circuit since the high Q tank will keep the output current
fairly sinusoidal and the two transistors will not fight each other's
non-symmetrical drain waveforms.

73
Johan SM6LKM